src/mojo/shell/task_runners.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "mojo/shell/task_runners.h"
   6
   7 #include "base/threading/sequenced_worker_pool.h"
   8
   9 namespace mojo {
  10 namespace shell {
  11
  12 namespace {
  13
  14 const size_t kMaxBlockingPoolThreads = 3;
  15
  16 scoped_ptr<base::Thread> CreateIOThread(const char* name) {
  17   scoped_ptr<base::Thread> thread(new base::Thread(name));
  18   base::Thread::Options options;
  19   options.message_loop_type = base::MessageLoop::TYPE_IO;
  20   thread->StartWithOptions(options);
  21   return thread.Pass();
  22 }
  23
  24 }  // namespace
  25
  26 TaskRunners::TaskRunners(base::SingleThreadTaskRunner* ui_runner)
  27     : ui_runner_(ui_runner),
  28       cache_thread_(CreateIOThread("cache_thread")),
  29       io_thread_(CreateIOThread("io_thread")),
  30       file_thread_(new base::Thread("file_thread")),
  31       blocking_pool_(new base::SequencedWorkerPool(kMaxBlockingPoolThreads,
  32                                                    "blocking_pool")) {
  33   file_thread_->Start();
  34 }
  35
  36 TaskRunners::~TaskRunners() {
  37   blocking_pool_->Shutdown();
  38 }
  39
  40 }  // namespace shell
  41 }  // namespace mojo